Evidence basis
Documentation-based selection checklist. No field test or universal suitability claim.
Selection criteria
1. Match the exact measurement task and environment to the manufacturer’s manual.
2. Review measurement ranges, accuracy and accessory ratings; headline features are incomplete.
3. Check genuine supply, calibration needs, warranty and local after-sales support.
| Reference option | Documented information | Verify before choosing |
|---|---|---|
| Fluke 117 reference example | Fluke documents True-RMS measurement, a CAT III 600 V rating and voltage, resistance, frequency and capacitance functions. | A listed category rating is specific to stated conditions. This guide does not authorize work on live systems or establish suitability for a particular installation. |
Sources & verification
Fluke — 117 official product documentation
Manufacturer-listed measurement capabilities and category rating.
Sources checked 3 October 2026. Recheck changing claims before publication and record dated corrections.
These are documented reference examples, not tested endorsements. The specifications alone do not validate a complete system.